[LyX/master] Remove unreachable code

[Jean-Marc]

commit c671740d8323c99526f0d3d2e9bc34b6accc65b6
Author: Jean-Marc <lasgout...@lyx.org>
Date:   Sat Sep 12 18:22:31 2015 +0200

    Remove unreachable code
    
    Fixes coverity issue 23295.

diff --git a/src/LyXRC.cpp b/src/LyXRC.cpp
index 8a8bc69..d4bac81 100644
--- a/src/LyXRC.cpp
+++ b/src/LyXRC.cpp
@@ -2300,8 +2300,6 @@ void LyXRC::write(ostream & os, bool ignore_system_lyxrc, 
string const & name) c
                os << "\n#\n"
                   << "# LANGUAGE SUPPORT SECTION ##########################\n"
                   << "#\n\n";
-               if (tag != RC_LAST)
-                       break;
 
        case RC_DEFAULT_DECIMAL_POINT:
                if (ignore_system_lyxrc ||